Detachable turret for drill-presses and the like.



J. BROZE'K. DETAOHABLE TURRET FOR DRILL PRESSES AND THE LIKE.

APPLICATION FILED JUNE 11, 1912. 1,079,973. Patented Dec. 2, 1913.

2 SHEETSSHEET 1 J. B ROZEK. DETAGHABLE TURRET FOR DRILL PRBSSES AND THE LIKE. APPLIOATION FILED JUNE 11, 1912. 1,079,973, Patented Dec. 2, 1913.

2 SHEETS-SHEET 2.

JOSEPH BROZEK, NEW YORK, N. Y.

DETACHABLE TURBET FOR DR ILL-PRESSES AND THE LIKE.

Specification of Letters Patent.

Patented Dec. 2', 1913.

Application flled'June 11, 1912. Serial No. 703,009.

flbullwlwmitmay concern: j

Be it known that I, Josnrri BROZEK, a

' citizen of the United States, residing in the the drawings.

ing my invention.

borough of Queens, in the county of Queens, city and State of New York, have invented new and useful Improvements in Detachable Turrets for Drill-Presses and the like, of which the following is a specification.

This invention relates to turret mechanism to be detachably connected to a rotatable spindle or shaft, such as the spindle of a drill press, lathe or the like, and it'is the object of the invention to provide a de- Further objects and advantages will hereinafter appear.

In the drawings accompanying and form ing a part of this specification, Figure 1 is a sectional side elevation of a turret embody- Fig. 2' is a view, partly in section, looking at the'left of Fig. 1. Fig. 3 is a perspective viewof a bushing in which the tool spindles are mounted in the turret. Fig.4 is a sectional side elevation of a moditied form of turret mechanism; and Fig. 5 is a view looking at the left of Fig. 4.

' Similar characters of reference designate like parts throughout the difierent views of In the embodiment of my invention illustrated in the drawings I have shown the same as detachably applied to the spindleti of a drill press, although it is also applicable to a spindle rotatable on a horizontal axis,

such as the spindle of a lathe or the like. The turret comprises a pair of separable members, one member as 7, stationary and the other member 8 rotatably supported on'the shouldered end of a stud '10 project ing centrally from the member .7 and retained thereon by a screw 9. The stationary member also has an annular seat 11 in which the rotatable member engages. Rot'atably mounted in a bushing 13' in the member 7 a driving spindle 12 adapted to engage in the socket of the spindle 6, said spindle 12 having an annular flange 14 engaging between a pair of washers 15, preferably of fiber, engaging in the spindle opening in the member 7, the washer abutting against the end of the bushing 13 and the spindle prevented from having axial upward movement by a nut 1 t screw-threaded into the spindle openlng.

To securely fix the turret in position and prevent rotary movement thereof with the driving spindle, the member 7 is provided with bracket arms lo connected by a transverse connecting bar 16 semi-circular in form to embrace the sliding sleeve 17 by 'means of whichthe drill spindle is raised and lowered, a complementary member engaging 'at the opposite side of the sleeve 17 and secured to the bracket arms 15' by screws to clamp the turret firmly in place and whereby it will reciprocate with the drill spindle.

The rotatable member of the turret 8 carries a series of tool spindles l8, either of which is adapted to be placed in coaxial.

alinement with the driving spindle 12 to drive it direct therefrom and locked in such position by a spring influenced locking pin or dctent 36 carried by the stationary member 7 engaging in either one of a series of register apertures 37 in the rotatable member 8. Each of the tool spindles has a beveled pinion 19' fixed to the inner end thereof andso constructed as to constitute one member of a clutch, asat 20. The'tool spindles are mounted in adjustable bushings 21 and maintained therein by locking nuts 22, a thrust bearing 23 being interposed between the nuts and material of the member 8; a fiber washer 28 isalso interposed between the pinions and a boss 25 to prevent undue chattering or noise, said washer preferably being seated-in a recess in the pinions. To permit of adjustment of the bushings 21. to take them up for Wear, etc., they are made tapering and .split lengthwise, as shown in Fig. 3, and the-openings in the member 8 in which they engage are correspondingly tapered. The bushings have a section of screw threads 26 corresponding to another section of screw threads 27 in the member 8, a set screw 28 engaging with said threads, and to take up the bushing it is only necessary to screw in said screw when the bushing by the turret member 7 connecting the pinj 17 is similarly adjustable by a set screw 28.

' rotated in the same direction as the driving- The driving spindle 12 is constantly rotated in'the direction of the arrow, and

the tool spindles when carrying a tool, as by a chuck 29- to drill or tap a hole, are

spindle 12. 'For thispurpose- I mount on the driving spindle to rotate therewith and have sliding movement thereon a clutch member 30 adapted to be operatively con-- nected to either one of the tool spindle clutch members 20. A shifter lever 31 having a handle 32 is slidably mounted in the turret member 7 and has a fork to engage in an annular recess in the clutch member 30, said shifter operable to throw the clutch member into and out of engagement with a tool spindle clutch member 2 I When screw threading or tapping holes it is essential that the tool has a reverse motion imparted thereto in order to back off the tap. For this purpose I rotatably mount on the driving spindle 12 a pinion 33 having a sleeve portion engaging in the bushin to prevent canting or lateral movement f the pinion, said pinion also constructed to form one memberlof a clutch 34, ap idler pinion 35 rotatably supported ion 33 with the tool spindle pinions 19. When ahole has been tapped, the clutch member 30 being operatively connected with a tool spindle clutch member and driving the tool spindle direct from the driving {spindle 12, and it is desired to back off the tap it is only necessary to raise the shifter 31 when the clutch member 30 will be thrown out of engagement with the tool spindle and a complementary clutch face- 38 on the clutch member 30 will be thrown into operative engagement with the clutch v of the pinion. 33 connecting the pinion to the driving shaft and reversing the rotation of the tool spindle through the intermediate idler 35.

To automatically reverse the motion of a tool, such as a tap, when it has descended or entered a predetermined distance in a hole, I provide a gage 40, said gage being in the form of a rod with the end bent substantially at a right angle, as at 41, and

; which the gage passes, and to lock it there in, the handle 32 is screw threaded into said arm with the end abutting against the gage. In operation the gage is set at a distance from the end of the tool the depth of the hole and secured in position by the handle 32. As the tool descends and approaches the bottom of the hole, the offset portion .41 of the gage will engage the work, and the further descent of the turret withv the gage will raise the latter and l I thereby the shifter throwing the clutch member 30 out of' engagement with the tool clutch' 20 and into engagement with the pinion clutch 33 connecting the tool to the driving spindle 12 through the train of gearing 33, 35, 1'9, and reversing the motion thereof.

After a hole has been drilled or'tapped and it is desired to adjust the turret for the operation of another tool, it is only necessary to withdraw the locking pin 36' when the turret member 8 is rotated on its axis of the driving spindle so that as the turret is rotated a tool will come in coaxial alinement with the drivin the tool pinion 19 is automatical y thrown into mesh with the idler 35, when the clutch member 30- is thrown by the shifter into engagement with the clutch member of, the tool spindle and the operation is repeated The ratio of the gearing 33, 35', 19 is. such as to materially increase the speed of the tool spindles relative to the driving spindle.

The clutch shifter is maintained in its a justed positions by a spring detent 43 cai-- ried by the turret member 7 engaging in either one of two recesses 43 in the shifter spindle,

31; that is, when the clutch member 30 is in engagement with the-toothpinion'clutch 20, i tent opening 43' and maintain said clutch members in engagement, and the detent 43 the detent 43 will engage in the lower dewill engage in the upper detentopenin 43' plnion clutch 34 are in engagement.

5, the axis of rotation of the turret member 8 is at right angles to the drivingspindle, whereby the tool although operating on an axis parallel with the driving spindle is oil'- set from the latter. The turret 8 also has a cone hearing, as at 45', with'its supporting stud 10 to give'it stability, and 1s removably connected to the turret member 7 bv .a handle 9. In said construction the tool is driven in the same direction as the drivingspindle 12 through a pinion 33 rotatably mounted on the spindle'12, connected thereto by the clutch member 30, meshing with one, 53, of a pair of connected intermediate bevel pinions, the other, as 44, of which meshes with either one of the tool pinions' In the construction shown in Figs. 4 and nected to the latter through the clutch mem ber 30. The clutch 30 is throwninto and V out of operative connection with-either of 80 axis, which is at any suitable angle to the 1 a handle 32 pivotally supported on the turret member ,7. The motion of a tool is antomatically reversed when a tool has entered a predetermined distance in a holeby a gage 40 similar to the gage shown in Figs. 1 and shown at W in Fig. 5; that is, drilling a hole a, forming a'body portion as at b by the succeeding tool, counterboring said hole,-

as etc, by thesucceeding tool, and then screw threading or tapplng the hole a.

Variations may be resorted to within the scope of my claims and portions of the imi the turret is rotatably mounted and whereby it is adapted to be detachably connected to a drill press rotatable tool spindles carried by the turret; a combined pinion and clutch member fixed to each of said spindles; a;

' driving spindle rotatably mounted in the turret support and by means of which the spindle pinions are adapted to mesh a duplex provem'ents may be used without others.

claim 1'. A detachable turret mechanism fordrillpresses and the like, comprising in combination a turret head; a support upon which turret is .operatively connected to the spindle of the drill press; a combined pinion and" clutch member rotatably mounted on the driving spindle; an idler pinion at all times in mesh v'viththe. inion on the driving spindle and Witll WhlClL either one of the tool clutch member mounted on the driving spindle to rotate: therewith and have sliding movement thereon and adapted to be'thrown into operative. enga ement with either one of the tool spindle clutch members to rotate said spindle in the same direction as and directly fromgth'e driving spindle, or tube thrown out of; engagement .with atool spindle clutch me rnber and into engagement with the pinion clutch member on the driving spindle and cause the tool spindle to rotate ion, substantially 'as. and or the purpose specified. a A turret mechanism for drill presses and the like, comprising in combination a turret head; a support upon which the tur ret is rotatably mounted having means to detachably'connect it to a drill press; rotatable tool spindles carried by the turret; a bevel pinion fixed to each of said tool spindles and constructed to constitute one memberof a jaw clutch; a driving spindle rotatably mounted in the turret support adapted to be operatively connected to the spindle of a drlll press; abevel pinion rotatably 3. A detachable turret mounted onsaid spindle and also construct ed to constitute one m'ember'of a' jaw clutch; an idle bevel pinion at all times in mesh with the driving-s indle pinion and with: which either one o the tool spindle inions are adapted to mesh and aduplexvc utch meniber on the driving spindle to rotate'th'ere with and having slidmginovement thereon operable to'connect a tool s indledirectly 'to the driving spindle to dr ve the; former directly from the latter and in'thesame direction, or to connect the tool spindles with the driving spindle through the idle pinion to drive the tool spindle in a reverse direction, substantially as and for the purpose specified. v

drill presses and the like, comprising in combination aturret head; a' support upon which the turret is rotatably mounted and Havingthus described my invention, I

having means to detachably connect it to the drill press; rotatable tool'spindles carried by the rotatable member; adjustable hearings in which said spindles are mount ed;- a pinion fixed. to each 'of said spindles and constituting one member of a clutch; a driving spindle rotatably mounted in the turretsu'pport and adapted to be connected to the driving spindle of the drill press; a pinion rotatably mounted on the driving spindle and constituting one member of ,a clutch; an idler pinion meshing with the driving spindle pinion and with which either .one of the tool spindle' pinions'is adapted to mesh; a duplex clutch member mounted shifter connected to said clutch member to operatively connect it with either one of the tool spindle clutch members and thereby drive the tool spindles'directly from; and in the same direction-as the driving spindle, or to connect it with the driving spindle pinion to drive the tool spindles through'the gear trainin a direction reverse to the driving spindle, said shifter comprising a yoke to engage in an annular recess in the duplex clutch member, a rod connected tothe oke and mounted in the turret support to ave longitudinal sliding movement, a handle mechanism for,

.onthe driving spindle to rotate therewith and have sliding movement thereon; and a cbnneeted to the rod, and a detent' adapted to engage with either one of'a pair of recesses in the rod: to lockthe clutch in its adjusted position; Y

p 4. A detachable turret mechanism for drill presses and the like, comprising in combination a turret head; a support upon.

which the turret is rotataoly mounted and having means to detachably connect it to the drill press; rotatable tool spindles carried by the turret; a bevel pinion fixed to each ofsaid spindles and constituting one member of a clutch; a driving spindle rotatably mounted in the turret support and adapte'd to be connected to the driving spinmounted on the driving spindle and constituting one member of a clutch; an idler bevel pinion meshing at all times with the driving spindle pinion and with which either one of the tool spindle pinions is adapted to mesh; a duplex clutch member mounted on the driving spindle to rotate therewith and have sliding movementthereon; a shifter connected to said clutch member to operatively connect it with either one of the tool spindle clutch members to drive the tool spindles directly from and in the same dimotion as the driving spindle; and a gage bar adjustably connected to the shifter to throw said clutch member out of engagement with a tool spindle clutch member and into operative engagement with the driving spindle pinion clutch to rotate the tool spindles through the idle pinion in reverse direction when the driving spindle of the press with the turret has been lowered a predetermined distance.

5. In a device of the class specified, the

combination ofa driving spindle adapted to be connected to the spindle of a drill press; turret mechanism comprising two sep arable members one member stationary in which said driving spindle is rotatably mounted and having means to detachably connect it. to a drill press, and the other adjustably carried by the stationary member;

a spring detent carried by the stationary member adapted to engage in either one of a series of opeiiiiigs in the adjustable member to lock the latter in adjusted positions; tool spindles rotatably carried by the rotatable member; a bevel pinion connected to each of the tool spindles; apair of bevel pinions rotatably mounted on the driving spindle and each constituting one member of a clutch; an idler pinion meshing with said latter: pinion; a second idler pinion connected to and rotatable with the first idler pinion and'with which either one of the tool spindle pinions is thrown into operative relation as the rotatable member of the turret is adjusted; and a clutch member mounted on the driving spindle to rotate therewith and have sliding movement thereon whereby to connect either one of the pinions on the driving spindle to the driving spindle to rotate the tool spindles in either direction.

6. In a device of the class specified, the combination of a driving spindle adapted to be connected to the turret mechanism comprising two separable members, one member stationary in which said driving spindle is rotatably mounted and having means to detachably connect it to the drill press, and the other member adjustably carried by the stationary member; a spring detent carried by the stationary member and adapted to engage in either one of a series of openings in the adjustable member to lock the latter in adjusted positions; tool spindles rotatably carried by said rotatable member; bevel pinions connected to said tool spindles; a pair of bevel pinions rotatably mounted on the driving spindle and each constructed to form one member of a clutch; an idler pinion meshing with the tool spindle pinions; a second pinion connected'to and rotatable with the idler pinion and with which either one of the tool spindle pinions is thrown into mesh as the rotatable turret member is adjusted; a duplex clutch member mounted on the driving spindle to rotate therewith and have sliding movement thereon; and a shifter connected to said clutch member to throw it into engagement with one of the drivingspindle of a drill press;

spindle pinion-clutches to rotate the tool spindles in one direction, and into engagement with the other driving-spindle pinionclutches to drive the tool spindles in a reverse direction.

JOSEPH BROZEK. Witnesses Pnnor A. SMITH, JOSEPH J HoLUB, Jr. 

